Title:
Water-insoluble polyvinylpyrrolidone composition
United States Patent 3216579


Inventors:
Shelanski, Morris V.
Theodore, Levenson
Application Number:
US11252561A
Publication Date:
11/09/1965
Filing Date:
05/25/1961
Assignee:
IND BIOLOGY LAB INC
Primary Class:
Other Classes:
210/500.1, 210/502.1, 424/78.25, 424/672, 424/682
International Classes:
C08K9/12; C12H1/04
View Patent Images:
Foreign References:
CA572682A1959-03-24
CA596585A1960-04-19